: Testing machines must feature two steel-bearing platens, one of which must be able to align freely upon contact with the specimen.
The standard, officially titled "Methods of test for masonry units - Part 1: Determination of compressive strength," is the definitive European and British technical document used to measure how much pressure a building block can withstand before it fails. It is a critical part of the BS EN 772 series and ensures that materials used in walls and partitions meet safety requirements for structural integrity. Core Purpose and Scope
If you are involved in specifying drainage for a highway, airport apron, pedestrian precinct, or industrial warehouse, is your rulebook. Here is why:
is typically required unless specific product standards dictate otherwise. Preparation : Surfaces must be plane to within 0.1 mm per 100 mm ; if they do not meet this, they must be ground or capped. Conditioning
But what exactly is BS EN 7721? Why is it so important? And most crucially, where can you legally and safely obtain the ? This comprehensive article answers all those questions, delves into the technical scope of the standard, and explains why using the correct version is non-negotiable for compliance.
: To conduct independent certification tests on construction materials.
